<template>
  <view>
    <view class="goods-item">
      <!-- 商品左侧图片区域 -->
      <view class="goods-item-left">
       <radio :checked="goods.goods_state" color="#C00000" v-if="showRadio" @click="radioClickHandler"></radio>
        <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
      </view>
      <!-- 商品右侧信息区域 -->
      <view class="goods-item-right">
        <!-- 商品标题 -->
        <view class="goods-name">{{goods.goods_name}}</view>
        <view class="goods-info-box">
          <!-- 商品价格 -->
          <view class="goods-price">￥{{goods.goods_price|tofixed}}</view>
       <uni-number-box :min="1" :value="goods.goods_count" @change="numChangeHandler" v-if="showNum"></uni-number-box>
        </view>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    name:"my-goods",
    props:{
     goods:{
       type:Object,
       default:{}
     },
        // 是否展示图片左侧的 radio
         showRadio: {
           type: Boolean,
           // 如果外界没有指定 show-radio 属性的值，则默认不展示 radio 组件
           default: false,
         },
          showNum: {
               type: Boolean,
               default: false,
             },
    },
    data() {
      return {
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
        };
      },
      methods: {
        // radio 组件的点击事件处理函数
        radioClickHandler() {
          // 通过 this.$emit() 触发外界通过 @ 绑定的 radio-change 事件，
          // 同时把商品的 Id 和 勾选状态 作为参数传递给 radio-change 事件处理函数
          this.$emit('radio-change', {
            // 商品的 Id
            goods_id: this.goods.goods_id,
            // 商品最新的勾选状态
            goods_state: !this.goods.goods_state
          })
        },
       
          numChangeHandler(val) {
    // 通过 this.$emit() 触发外界通过 @ 绑定的 num-change 事件
    this.$emit('num-change', {
      // 商品的 Id
      goods_id: this.goods.goods_id,
      // 商品的最新数量
      goods_count: +val
    })
  }
      },
      filters: {
        // 把数字处理为带两位小数点的数字
        tofixed(num) {
          return Number(num).toFixed(2)
        }
      }
    }
  
</script>

<style lang="scss">
.goods-item {
  width: 750rpx;
  box-sizing: border-box;
  display: flex;
  padding: 10px 5px;
  border-bottom: 1px solid #f0f0f0;

  .goods-item-left {
    margin-right: 5px;
  display: flex;
  justify-content: space-between;
  align-items: center;

    .goods-pic {
      width: 100px;
      height: 100px;
      display: block;
    }
  }

  .goods-item-right {
    display: flex;
      flex: 1;
    flex-direction: column;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
    }
 .goods-info-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
    .goods-price {
      font-size: 16px;
      color: #c00000;
    }
  }
}
</style>